The albums Black Sabbath recorded during their first go-round with Ozzy Osbourne will be collected in a new box set. Rhino will release 'Black Sabbath: The Complete Studio Albums 1970-1978' on April 15.

Co-founding Black Sabbath drummer Bill Ward paid tribute to his contemporary in Led Zeppelin on his 'Rock 50' radio show (embedded above), saying, "If you want to strive toward something, just listen to John Bonham."

Modern-day soul singer Charles Bradley recently covered Black Sabbath's ballad 'Changes' as a B-side on an exclusive Record Store Black Friday seven-inch single. The song has now found its way online, and you can hear it below.

Any time a veteran band returns from a long hiatus with a new album, fans hope it means they're back on track creatively and ready to follow up with another record sooner than later. But rather than the start of a new chapter, it looks like Black Sabbath's '13' could wind up serv…